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Offshore Support Journal

Ballast Water Treatment Technology

USCG clarifies stance on TA equipment in domestic ships

Mon 02 Jul 2018 by Paul Gunton

USCG clarifies stance on TA equipment in domestic ships
USCG inspectors will accept some type-approved systems on foreign-flagged ships but not on domestic vessels (credit: USCG)

Not all US Coast Guard (USCG) type-approved pieces of equipment “are destined to be installed on US-flagged vessels”, the editor of the USCG’s online Maritime Commons blog, Amy Midgett, has advised BWTT.

She was responding to points made in the latest video comment by BWTT editor Paul Gunton in which he expressed surprise that two USCG type-approved ballast water management systems (BWMSs) were specifically excluded from use on US vessels because they do not meet two US technical requirements.

In her note, Lt Midgett drew attention to the difference between IMO’s Ballast Water Management Convention (BWMC) – to which the US is not a signatory – and USCG’s regulations, saying that one difference between them “is the discharge standard”.

She added “The standards we apply to US domestic shipping may differ from SOLAS, so we cannot apply our domestic standards in lieu [of] SOLAS standards to foreign vessels entering the waters of the USA.”

But she confirmed that the text included in the two type-approval certificates mentioned in the video comment and in an earlier news item meant that neither would meet inspection requirements if installed on a US vessel but “would be accepted in a US port if installed on a foreign vessel”.

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